More to the point, it doesn't allow you to use or threaten force or deadly force AFTER an attack is over.The law does not allow for things like "he could have a weapon" or "you don't know what his intentions are".
Force is allowed to STOP an attack, not to RETALIATE for one.If I gotta take a face slapping you gotta take someone beating on your window. With that said I also gotta say BULLTORK! If you can't at least pull your weapon to stop a possible attack against you then the law is not on our side.
Therefore, you DON'T have to "take a face slapping". If you can prevent it, then the law allows you to do so. But that's not what you want. You clearly want to be able to draw on the guy AFTER he slapped your face, whether or not he's still attacking you. As your only justification, you say that there MIGHT be a POSSIBLE attack. That's not sufficient justification under the law.
The law is not hard to understand.
You CAN use force if he's still attacking. (To STOP the attack/protect yourself/prevent injury.)
You CAN'T use force if the attack is over. (Because there's nothing to stop/prevent/protect against.)
In fact, if the attack is clearly over, and THEN you draw your gun, the "slapper" can very likely now draw in turn and shoot you legally in self defense. By drawing, YOU have initiated a NEW deadly force confrontation with YOU as the unlawful aggressor.
txinvestigator,
It becomes terribly unwieldy to type "an attack qualifying for the use of force or the threat of deadly force" every single time. The attack has been well defined as an open-handed slap (or possibly a series of open-handed slaps) and that's what I'm referring to. You are correct that attack is far too generic to be used unless everyone understands what is being referred to.